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    Method and apparatus for routing messages in hybridized optical/wireless networks
    1.
    发明授权
    Method and apparatus for routing messages in hybridized optical/wireless networks 失效
    用于在混合光/无线网络中路由消息的方法和装置

    公开(公告)号：US07349635B2

    公开(公告)日：2008-03-25

    申请号：US10725342

    申请日：2003-12-01

    申请人： Mooi Choo Chuah ,  Randy C. Giles ,  Xiang Liu ,  Muhammad A. Qureshi

    发明人： Mooi Choo Chuah ,  Randy C. Giles ,  Xiang Liu ,  Muhammad A. Qureshi

    IPC分类号： H04B10/00 ,  H04B10/04

    CPC分类号： H04B10/1125

    摘要： Method and apparatus for routing messages in a network includes first filters to provide frequency-based message signals converted from an optically-based signal and mixers adapted to mix the frequency-based message signals with sub-carriers to generate frequency-based sub-carrier modulated message signals. A frequency generator connected to the mixers provides the sub-carriers to the mixers and a combiner connected to the mixers combines the frequency-based sub-carrier modulated message signals. Second filters connected to the combiner receive and group the frequency-based sub-carrier modulated message signals. Optical transmitters connected to second filters optically convert and transmit the frequency-based sub-carrier modulated message signals. The frequency generator generates and applies a particular sub-carrier frequency to one of the mixers according to information contained in the frequency-based message signal. The information is encoded into the frequency-based message signal via a generalized MPLS (GMPLS) label contained in a header portion of the frequency-based message signal.

    摘要翻译： 用于在网络中路由消息的方法和装置包括：第一滤波器，用于提供从基于光学的信号转换的基于频率的消息信号，以及适于将基于频率的消息信号与子载波混合的混频器，以产生基于频率的子载波调制 消息信号。 连接到混频器的频率发生器将副载波提供给混频器，并且连接到混频器的组合器组合基于频率的子载波调制消息信号。 连接到组合器的第二滤波器接收并分组基于频率的子载波调制消息信号。 连接到第二滤波器的光发射机光学地转换和发射基于频率的子载波调制消息信号。 频率发生器根据包含在基于频率的消息信号中的信息产生特定的副载波频率到一个混频器。 该信息通过包含在基于频率的消息信号的报头部分中的广义MPLS（GMPLS）标签被编码到基于频率的消息信号中。

    Rate-adaptive forward error correction for optical transport systems
    2.
    发明授权
    Rate-adaptive forward error correction for optical transport systems 有权
    光传输系统的速率自适应前向纠错

    公开(公告)号：US08122330B2

    公开(公告)日：2012-02-21

    申请号：US11834169

    申请日：2007-08-06

    申请人： Adriaan J. De Lind Van Wijngaarden ,  Randy C. Giles ,  Steven K. Korotky ,  Xiang Liu

    发明人： Adriaan J. De Lind Van Wijngaarden ,  Randy C. Giles ,  Steven K. Korotky ,  Xiang Liu

    IPC分类号： H03M13/03

    CPC分类号： H04L1/0009 ,  H04L1/0015

    摘要： An optical transport system (OTS) having a plurality of optical transponders (OTs) connected via one or more optical links and adapted to communicate with one another using respective rate-adaptive forward-error-correction (FEC) codes. In one embodiment, the OTS has a rate control unit (RCU) adapted to configure the OTs to dynamically adjust the rates of the FEC codes based on an estimated performance margin for each link between two respective communicating OTs to optimize the overall capacity of the OTS while maintaining an adequate, but not excessive, overall system margin.

    摘要翻译： 具有经由一个或多个光链路连接并且适于使用相应的速率自适应前向纠错（FEC）码相互通信的多个光转发器（OT）的光传输系统（OTS）。 在一个实施例中，OTS具有速率控制单元（RCU），其适于配置OT以基于两个相应通信OT之间的每个链路的估计性能裕度动态地调整FEC码的速率，以优化OTS的总体容量 同时保持足够而不是过度的整体系统利润。

    RATE-ADAPTIVE FORWARD ERROR CORRECTION FOR OPTICAL TRANSPORT SYSTEMS
    3.
    发明申请
    RATE-ADAPTIVE FORWARD ERROR CORRECTION FOR OPTICAL TRANSPORT SYSTEMS 有权
    光传输系统的自适应前向纠错校正

    公开(公告)号：US20090044079A1

    公开(公告)日：2009-02-12

    申请号：US11834169

    申请日：2007-08-06

    申请人： Adriaan J. de Lind Van Wijngaarden ,  Randy C. Giles ,  Steven K. Korotky ,  Xiang Liu

    发明人： Adriaan J. de Lind Van Wijngaarden ,  Randy C. Giles ,  Steven K. Korotky ,  Xiang Liu

    IPC分类号： H03M13/00

    CPC分类号： H04L1/0009 ,  H04L1/0015

    摘要： An optical transport system (OTS) having a plurality of optical transponders (OTs) connected via one or more optical links and adapted to communicate with one another using respective rate-adaptive forward-error-correction (FEC) codes. In one embodiment, the OTS has a rate control unit (RCU) adapted to configure the OTs to dynamically adjust the rates of the FEC codes based on an estimated performance margin for each link between two respective communicating OTs to optimize the overall capacity of the OTS while maintaining an adequate, but not excessive, overall system margin.

    摘要翻译： 具有经由一个或多个光链路连接并且适于使用相应的速率自适应前向纠错（FEC）码相互通信的多个光转发器（OT）的光传输系统（OTS）。 在一个实施例中，OTS具有速率控制单元（RCU），其适于配置OT以基于两个相应通信OT之间的每个链路的估计性能裕度动态地调整FEC码的速率，以优化OTS的总体容量 同时保持足够而不是过度的整体系统利润。

    PMD-reduction processing for a multi-channel receiver
    4.
    发明授权
    PMD-reduction processing for a multi-channel receiver 有权
    用于多通道接收机的PMD减少处理

    公开(公告)号：US07330663B2

    公开(公告)日：2008-02-12

    申请号：US10425432

    申请日：2003-04-29

    申请人： Randy C. Giles ,  Xiang Liu ,  Chongjin Xie

    发明人： Randy C. Giles ,  Xiang Liu ,  Chongjin Xie

    IPC分类号： H04B10/12

    CPC分类号： H04B10/2569 ,  H04J14/02

    摘要： A multi-channel (e.g. WDM) receiver, in which l PMD compensators are time-shared by n (n>1) communication channels, where 1≦l≦n−1. The receiver implements PMD monitoring to identify channels exhibiting relatively high amounts of PMD. Some or all of the identified channels are then subjected, before decoding, to PMD-reduction processing, while the remaining channels are decoded without such processing. Channel allocation for the processing may be changed dynamically depending on the current amounts of PMD exhibited by various channels. Due to efficient utilization of PMD compensators, multi-channel receivers of the invention are capable of performance comparable to that of the corresponding fully compensated (i.e., having a dedicated PMD compensator for each channel) receivers, but at appreciably lower cost.

    摘要翻译： 多通道（例如WDM）接收机，其中1个PMD补偿器由n（n> 1）个通信信道共享，其中1≤l≤n-1。 接收机实现PMD监测，以识别显示相对较高量的PMD的信道。 然后在解码之前将所识别的一些或全部信道进行PMD减少处理，而在不进行这种处理的情况下对其余信道进行解码。 用于处理的信道分配可以根据各种信道所呈现的PMD的当前量而动态地改变。 由于PMD补偿器的有效利用，本发明的多通道接收机能够与相应的完全补偿（即，具有用于每个通道的专用PMD补偿器）接收机的性能相当，但成本明显较低。

    Showerhead
    7.
    外观设计
    Showerhead 有权

    公开(公告)号：USD1035830S1

    公开(公告)日：2024-07-16

    申请号：US29938456

    申请日：2024-04-22

    申请人： Xiang Liu

    设计人： Xiang Liu

    摘要： FIG. 1 is a front, right, top perspective view of a showerhead, showing my new design;
    FIG. 2 is a rear, left, bottom perspective view thereof;
    FIG. 3 is a front elevational view thereof;
    FIG. 4 is a rear elevational view thereof;
    FIG. 5 is a left side view thereof;
    FIG. 6 is a right side view thereof;
    FIG. 7 is a top plan view thereof;
    FIG. 8 is a bottom plan view thereof;
    FIG. 9 is an enlarged view of detail 9 in FIG. 1;
    FIG. 10 is an enlarged view of detail 10 in FIG. 3;
    FIG. 11 is a front, right, top perspective view of its enlarged in an alternate configuration;
    FIG. 12 is an enlarged view of detail 12 in FIG. 11; and,
    FIG. 13 is a front, right, top perspective view of its in an alternate configuration.
    The dashed broken lines in the figures are for the purposes of illustrating portions of the showerhead and form no part of the claimed design.
    The dash-dot-dash broken lines are for notating enlarged views and form no part of the claimed design.

    Rain gutter dredger and use thereof
    8.
    发明授权
    Rain gutter dredger and use thereof 有权

    公开(公告)号：US11454029B2

    公开(公告)日：2022-09-27

    申请号：US16724250

    申请日：2019-12-21

    申请人： Xiang Liu

    发明人： Xiang Liu

    IPC分类号： E04D13/076 ,  E04D13/08 ,  E04D13/064

    摘要： This disclosure is directed to a system designed for automatic de-clogging a rain gutter and a downspout. The system (also referred to as a gutter dredger) comprises a motion device (motor) and a cleaning device. When it is raining, rain water can power the system to cause reciprocating motions of the cleaning device that can result in de-clogging of a gutter and a downspout that have the system installed. A debris removal device may be positioned in the downspout to remove big debris before it moves into the motor. The gutter dredger can be used for automatically de-clogging a gutter and downspout whenever it is raining.